SysTools OST splitter wizard is a powerful tool that helps to divide large Outlook OST files into smaller PST files without Microsoft installation. With advanced features, it is an ideal solution for users seeking an efficient OST file splitting solution.

Using the OST Splitter, you can easily break both UNICODE and ANSI OST files into smaller parts, thereby reducing the overall file size of your Outlook data. You can specify the file size range that you want to work with, and the software will automatically split your files accordingly.
One of the standout features of this software is the ability to search for all OST files on a selected drive with just a few clicks. You can then use the utility to split your files by date, email ID, or other categories such as Mails, Calendar, Contacts, Notes, Task, and Journals. You can also import a CSV file to fetch user data from your OST file.
If you need to reduce your OST file size by year, then the 'split OST by year' option is the ideal solution. This feature enables you to break large OST data into smaller parts, with each file containing data from a single year.
The software's user interface is simple and easy to use, making it ideal for both technical and non-technical users. You won't need to install Microsoft Outlook to use this software, and the original structure of your files will remain intact. Once you've split your files, the software will create a new folder where you can save your files.
Overall, the OST Splitter application is an excellent tool for anyone who needs to manage their Outlook OST files more efficiently. With its many features and ease of use, you'll find that it's an indispensable addition to your toolkit.
Version 4.0: Updated with Fast Scanning Algorithm